Global development tendency of the frozen soil (permafrost) study based on bibliometrical analysis from 2012 to 2016
LI Na, JIA Xiaojing, MAO Wenliang, MA Jianxia
Journal of Glaciology and Geocryology . 2019, (3): 740 -748 .  DOI: 10.7522/j.issn.1000-0240.2019.0510

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